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Segment Information and Foreign Operations (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 Segment | Dec. 31, 2013 | Dec. 31, 2012
Segment Information [Abstract] |  |  |  |  |  |  |  |  |  |  |
Number of operating segments |  |  |  |  |  |  |  |  | 1 us-gaap_NumberOfOperatingSegments |  |
Net revenues reported for products shipped to customers in corresponding geographic region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net revenue | $ 19,567 us-gaap_Revenues | $ 23,138 us-gaap_Revenues | $ 21,449 us-gaap_Revenues | $ 19,345 us-gaap_Revenues | $ 18,603 us-gaap_Revenues | $ 20,521 us-gaap_Revenues | $ 22,831 us-gaap_Revenues | $ 22,380 us-gaap_Revenues | $ 83,499 us-gaap_Revenues | $ 85,335 us-gaap_Revenues | $ 88,374 us-gaap_Revenues
Long-lived assets by geographic region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 33,862 us-gaap_PropertyPlantAndEquipmentNet |  |  |  | 37,621 us-gaap_PropertyPlantAndEquipmentNet |  |  |  | 33,862 us-gaap_PropertyPlantAndEquipmentNet | 37,621 us-gaap_PropertyPlantAndEquipmentNet |
China [Member] |  |  |  |  |  |  |  |  |  |  |
Long-lived assets by geographic region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 33,726 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_CN |  |  |  | 37,417 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_CN |  |  |  | 33,726 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_CN | 37,417 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_CN |
United States of America [Member] |  |  |  |  |  |  |  |  |  |  |
Long-lived assets by geographic region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 136 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US |  |  |  | 204 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US |  |  |  | 136 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US | 204 us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementGeographicalAxis = country_US |
Reportable Geographical Components [Member] | Europe [Member] |  |  |  |  |  |  |  |  |  |  |
Net revenues reported for products shipped to customers in corresponding geographic region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 21,535 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember | 21,387 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember | 18,170 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember
Reportable Geographical Components [Member] | China [Member] |  |  |  |  |  |  |  |  |  |  |
Net revenues reported for products shipped to customers in corresponding geographic region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 17,451 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_CN | 24,946 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_CN | 19,815 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_CN
Reportable Geographical Components [Member] | North America [Member] |  |  |  |  |  |  |  |  |  |  |
Net revenues reported for products shipped to customers in corresponding geographic region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 10,292 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember | 10,665 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember | 15,391 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember
Reportable Geographical Components [Member] | Japan [Member] |  |  |  |  |  |  |  |  |  |  |
Net revenues reported for products shipped to customers in corresponding geographic region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 11,550 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_JP | 9,041 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_JP | 9,346 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_JP
Reportable Geographical Components [Member] | Taiwan [Member] |  |  |  |  |  |  |  |  |  |  |
Net revenues reported for products shipped to customers in corresponding geographic region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | 11,464 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_TW | 10,131 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_TW | 10,985 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = country_TW
Reportable Geographical Components [Member] | Asia Pacific (excluding China, Japan and Taiwan) [Member] |  |  |  |  |  |  |  |  |  |  |
Net revenues reported for products shipped to customers in corresponding geographic region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net revenue |  |  |  |  |  |  |  |  | $ 11,207 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = axti_AsiaPacificExcludingJapanAndTaiwanMember | $ 9,165 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = axti_AsiaPacificExcludingJapanAndTaiwanMember | $ 14,667 us-gaap_Revenues / us-gaap_ConsolidationItemsAxis = us-gaap_ReportableGeographicalComponentsMember / us-gaap_StatementGeographicalAxis = axti_AsiaPacificExcludingJapanAndTaiwanMember

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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph a -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 7 + Details
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